Researchers have developed a battery-free sensor that reacts to sound waves, such as particular spoken words, producing enough vibrational energy to power an electronic device.

With This New Sensor, Drummers Will Never Sound the Same Again With Sensory Percussion, drummers can perform electronic music live. By Brady Dale • 01/23/17 11:16am ...

Since that worked so well, the team next turned to human speech. They stuck the sensor on the necks of 10 human volunteers, and asked them to say the words “go,” “jump,” “shoot” and ...

In this case, the sensor is using sound waves to measure something it doesn’t have to penetrate deeply: your fingerprint. Samsung says that the sensor can see your print in three-dimensions.

The sensor measures the sound, an artificial intelligence (AI) evaluates the sound signature and determines the type of shot, for example. The ...

If the sound of breaking glass is detected, you’ll get an alert sent to your Ring app, though you can choose for your Ring Alarm siren or Alarm Outdoor Siren to sound if you’re in away mode for ...